Answer:
A. True
Explanation:
The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.
Crossing-over takes place between...
A. sister chromatids
B. analogous chromosomes
C. homologous chromosomes
Answer:
C. homologous chromosomes
Explanation:
Crossing over occurs between prophase I and metaphase I and is the process where two homologous non-sister chromatids pair up with each other and exchange different segments of genetic material to form two recombinant chromosome sister chromatids.
Answer:
C. homologous chromosomes
Explanation:
Crossing-over takes place between homologous chromosomes.
help plsssssss will give brainliest
Answer:
C
Explanation:
Common sense
Which three statements are true about the energy flow in an ecosystem?
Answer:
main source of energy for an ecosystem is the sun producers convert radiant energy to chemical energy the maximum amount of biomass is at the lowest trophic level
Answer:
A,B and E
Explanation: hope it helps you :)
Give 2 advantages that mammals have over reptiles. Explain.
Answer:
warm-bloodedness is the main one
Explanation:
Answer:
1) Being warm-blooded gives mammals a distinct advantage in habitats
2) Mammals are important members of food chains and food webs, as grazers and predators.
3) Mammals meet people's needs by serving as pets, transport, food, or research subjects.
4) Mammals also interact with other species in many symbiotic relationships.
What does biodiversity mean?
O
same organisms at each level
different organisms at all levels
O differences within one species
similarities within one species
Answer:
Biodiversity is a kind of variation of animals, or plant species within a given habitat
Explanation:
5. What process happens when rocks break down due to reaction with water,
carbon dioxide, oxygen and organic acids?
A. Biological Engineering
B. Chemical Engineering
C. Electrical Engineering
D. Mechanical Engineering
If your score is
sted by the ever
4- 5 Very good! You may still read the module but you are already
knowledgeable with the topics that we are to discuss.
2-3 Good! Go over the items that you find difficult and then you may proceed
to the lessons in this module that you don't understand. .
to
Answer:
Chemical engineering
Explanation: I am not really that good at science but my opinion is that it is chemical engineering because the process of the rock breaking down with the listed factors of water, carbon dioxide etc. If you are not sure you can also look of the definition for each of the engineering factors...
All of the species of sugar maple trees (Acer saccharum) found in the [town] make up a:
1. population
2. community
3. ecosystem
4. biome
Answer:biome
Explanation:
Because biome means where they are from
Answer:
C
I think it's correct unless any objections
What is the genotype of an organism?
A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.
B. How the genes are expressed resulting in the physical appearance of the organism.
Answer:A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.
Explanation:
A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.
How human health is affected by contaminated food
Answer:
Foodborne pathogens can cause severe diarrhoea or debilitating infections including meningitis. Chemical contamination can lead to acute poisoning or long-term diseases, such as cancer. Foodborne diseases may lead to long-lasting disability and death
Explanation:
i hope it will help you
The hypothesis that whales evolved from land-dwelling ancestors is supported by __________. ANSWER Unselected molecular comparisons of whales and fish Unselected historical accounts of walking whales Unselected the ability of captive whales to be trained to walk Unselected fossils of extinct whales that had increasingly reduced hind limbs Unselected evidence from the current biogeographic distribution of whales Unselected I DON'T KNOW YET
Answer:
The answer is "Third choice".
Explanation:
Fossils are a great source of evidence about whales' forebears. It demonstrates, for instance, that a land mammal lived 50 million to 700 years ago. Whales evolved from such marine residents were thought by scientists. Scientists. This and more cells from a fossil can be said, so the concept that whales evolved from ancestors of land is reinforced by an extinct whale which has shortened the hind limbs evermore.
Molecules on the outer surface of a microorganism act as____
The immunostimulants act as those molecules that are found on the outer surface of the microforms.
What are microsorgams ?The microorganisms are those organisms that can only be seen through the microscope and include the bacteria, the protozoa, the algae, and the fungi.
The virus is not considerd to be living and has a single cell or may form a colony of cells. The unseen microbial life is scripted in the 6th century BC. As these microorganisms have a single-celled life they are more diverse.
The presence of the immunostimulants on the body of the micro organs tells about the outer surface of these microorganisms.
Find out more information about the microorganism.
brainly.com/question/8695285
The ozone destroying pollutants primarily comes from air conditioner coolants, refrigerator coolant, aerosol spray, and plastic foam. *
true
false
Answer:
true
Explanation:
Chlorofluorocarbons or CFCs are the main cause of ozone layer depletion. These are released by solvents, spray aerosols, refrigerators, air-conditioners, etc. The molecules of chlorofluorocarbons in the stratosphere are broken down by the ultraviolet radiations and release chlorine atoms.
Which of the following best describes the function of the human nervous system?
Answer:
The nervous system gathers, interprets, and responds to information about the body's internal and external environment.
Scientists recently discovered that three different types of squid, a marine animal, previously thought to be three different species, were actually all members of one species. Their earlier ideas were based on using squid carcasses (dead bodies). The new, more accepted classification is most probably based on an analysis of
A. a greater number of squid carcasses
B. the feeding habits of the three different species
C. a number of newly found squid fossils
D. the DNA present in the cells of squid
Answer:
D: The DNA present in the cells of the squid.
Which algebraic property could be used to rewrite 3x ⋅ (7y ⋅ 4) as (3x ⋅ 7y) ⋅ 4?
Associative Property of Addition
Associative Property of Multiplication
Commutative Property of Addition
Commutative Property of Multiplication
Answer:
Associative property of Addition
Explanation:
In an algebra to form an equation we add
Answer:
Associative property of Addition
Explanation:
In an algebra to form an equation we add
What can you infer from this graph?
Answer: you can infer that I don’t give a uriruru
A sample of human tissue has just been delivered to your evidence room for a crime scene
What type of tissue is this?
Please help will mark BRAINLIEST and make sure to explain!!
which of the samples shown below are photosynthetic
Option B. Samples ACD Are photosynthetic
What does it mean to be photosyntheticTo be photosynthetic means to possess the ability to carry out photosynthesis, a vital process in which organisms, typically plants, algae, and some bacteria, use sunlight, carbon dioxide, and water to synthesize organic compounds, particularly glucose, and release oxygen as a byproduct.
Photosynthesis occurs in specialized cell structures called chloroplasts, which contain chlorophyll and other pigments that capture light energy. These pigments absorb light, primarily in the visible spectrum, and convert it into chemical energy through a series of biochemical reactions.
Read more on photosynthesis here:https://brainly.com/question/13763348
#SPJ1
what is the all year round climate present in the philipines
The average year-round temperature measured from all the weather stations in the Philippines, except Baguio, is 26.6 °C (79.9 °F). Cooler days are usually felt in the month of January with temperature averaging at 25.5 °C (77.9 °F) and the warmest days, in the month of May with a mean of 28.3 °C (82.9 °F).
In which process are the homologous chromosomes separated?
A. Meiosis
B. Mitosis
Answer:
A. Meiosis
Explanation:
Since Meiosis is the process of separating homologous chromosomes way from each other while Mitosis don't the answer will be A. Meiosis
Hope this helps!
Answer:
A. Meiosis
Explanation:
Meiosis is the process, in which the homologous chromosomes separated. So, option (A) is correct answer.
How did the drought most likely affect populations of grasshoppers living in the grassland ecosystems? Choose the correct answer.
A. The insects adapted to eat other available foods instead of grass.
B. Populations increased because other insects were eliminated from the environment. C. Populations decreased because the resources the grasshoppers needed were not available.
D. Populations of grasshoppers were not affected because the size of a population cannot change over time.
I need help
Answer:c
Explanation:
For each group write the # of valence electrons
Answer:
Explanation:
Bascially just count starting from 1 (skip the transition metals) and put helium at 2 valence. Everything else is just a regular pattern.
Cellular respiration definition ?
Answer:
cellular Respiration is that cells use oxygen in mitochondria to make ATP and GTP for cells
Answer:
Cellular respiration occurs when cells utilize oxygen in their mitochondria to produce ATP and GTP.
Cellular respiration is a series of reactions that occur under aerobic conditions and result in the production of large amounts of ATP.
Explanation:
Glucose, the basic building block for starch and many sugars are one of the main sources of energy in our diet. Its oxidation can be divided into three phases in the respiration of the cells: glycolysis, the cancer cycle, and the electron transport system.
Aerobic breathing uses eukaryotes to generate energy, including all multicellular organisms and some single-cell organisms. Aerobic breathing uses oxygen – a powerful, in-kind electron acceptor.
Aerobic breathing is an extraordinarily effective process that enables eukaryotes to have complicated life and active lifestyles. It also means however that they need a continuous supply of oxygen or that they cannot get the energy to stay alive.
Other forms of respiration, which are slightly less efficient, can be used by procharian organizations such as bacteria and archaebacteria. They can therefore live in environments in which eukaryotic organisms cannot live because they do not need oxygen.
99% of the GMOs on the planet are ____
or ____
Answer:
The answer would be pesticide producers and herbicide resisters.
Explanation:
Hope this helped!
1: Which two parts of the taxa do we use to name organisms?
2: List and describe each of the three Domains.
3 List and describe the four kingdoms in the Eukarya Domain.
Adrenergic receptors Select one: a. can be activated by the release of epinephrine. b. have two structural forms - muscarinic and nicotinic. c. when activated stimulate skeletal muscles to contract. d. can be found in both the sympathetic and parasympathetic divisions. e. are activated by the release of acetylcholine.
Answer:
The correct answer is a. can be activated by the release of epinephrine.
Explanation:
Epinephrine is a hormone and neurotransmitter naturally secreted by the body through the adrenal glands, synthesized and stored in the adrenal medulla and released into the systemic circulation. Epinephrine is a non-selective adrenergic agonist, stimulating alpha1-, alpha2, beta1, and beta2-adrenergic receptors. The systemic actions of catecholamines are mediated by the binding of these compounds to plasma membrane receptors, of the GPCR type widely distributed throughout the body and known as adrenergic receptors, which are activated by the catecholamines adrenaline (epinephrine) and noradrenaline . These receptors cause different effects depending on the G protein subtypes to which they are associated and the signal transduction mechanism linked to the specific G protein.
Which part of the neuron below is indicated by the arrow, and what is its function?
The long section of a neuron that includes structures that wrap around the neuron are indicated by the arrow.
- The myelin sheath releases neurotransmitters so that electrical impulses can be transferred.
- The myelin sheath protects and transmits electrical impulses faster.
- The node of Ranvier transmits electrical impulses faster.
- The node of Ranvier transfers information across a gap.
Answer:
the arrow points to an axon
Explanation:
Each neuron in your brain has one long cable that snakes away from the main part of the cell. This cable, several times thinner than a human hair, is called an axon, and it is where electrical impulses from the neuron travel away to be received by other neurons.
Answer:
B: The myelin sheath protects and transmits electrical impulses faster.
Explanation:
i just took the test and its B
PLEASE HELP! WILL MARK BRANLIEST! The amount of carbon today is the exact amount that has always been on Earth. T or F
Answer:
True
Explanation:
I dont know if this is correct but I looked it up I hope this helps! Have a great day!
A muscle cramp is a sudden, painful contraction of a muscle, during which movement is difficult. What is happening at the cellular level during a muscle cramp?
Answer:
Myosin and actin do not fully detach, so the muscle cannot relax.
Describe movement of molecules to maintain a healthy cell environment. Explain in details
Answer:
Very necessary for its survival.
Explanation:
Movement of molecules is very important to maintain a healthy cell environment because some molecules are required by the cell for its growth and development. Some molecules moves inside the cell environment through a semi-permeable membrane such as glucose, oxygen, potassium etc while on the other hand, some molecules are removed from the cell which are waste materials such as carbondioxide etc. If these waste materials are not removed from the cell, it greatly damaged the cell.